Affordable Access

deepdyve-link
Publisher Website

Spatially anisotropic Heisenberg Kagome antiferromagnet

Authors
  • Apel, W.
  • Yavors'kii, T.
  • Everts, H. -U.
Type
Preprint
Publication Date
Aug 17, 2006
Submission Date
Aug 17, 2006
Identifiers
DOI: 10.1088/0953-8984/19/34/349001
arXiv ID: cond-mat/0608393
Source
arXiv
License
Unknown
External links

Abstract

In the search for spin-1/2 kagome antiferromagnets, the mineral volborthite has recently been the subject of experimental studies [Hiroi et al.,2001]. It has been suggested that the magnetic properties of this material are described by a spin-1/2 Heisenberg model on the kagome lattice with spatially anisotropic exchange couplings. We report on investigations of the Sp(N) symmetric generalisation of this model in the large N limit. We obtain a detailed description of the dependence of possible ground states on the anisotropy and on the spin length S. A fairly rich phase diagram with a ferrimagnetic phase, incommensurate phases with and without long range order and a decoupled chain phase emerges.

Report this publication

Statistics

Seen <100 times